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<h1 class="topictitle1">备份VMware虚拟机时VDDK打开磁盘失败</h1>
<div><div class="section"><h4 class="sectiontitle">现象描述</h4><p>执行VMware虚拟机备份任务时，出现VDDK打开磁盘失败，后续备份任务出现VDDK初始化失败。</p>
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<div class="section"><h4 class="sectiontitle">可能原因</h4><p>在单个ESXi主机上以NBDSSL模式打开的虚拟机磁盘数量过多，达到52个的数量限制。</p>
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<div class="section"><h4 class="sectiontitle">处理步骤</h4><ol><li><span>重启客户端服务。</span><p><ol type="a"><li>使用PuTTY工具以<strong id="vmware_gud_0142__zh-cn_topic_0000002164790296_zh-cn_topic_0000002200031305_b916917212">root</strong>账户登录待安装客户端的主机。</li><li>执行以下命令进入“ProtectClient”目录。<div class="note" id="vmware_gud_0142__zh-cn_topic_0000002200116653_note13958111815513"><img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span><div class="notebody"><p id="vmware_gud_0142__zh-cn_topic_0000002200116653_zh-cn_topic_0000001792390220_p1655195845015"><span id="vmware_gud_0142__zh-cn_topic_0000002200116653_ph58441642194017">命令中的<em id="vmware_gud_0142__zh-cn_topic_0000002200116653_zh-cn_topic_0000002164630536_i2153220484">/opt</em>为客户端的默认安装目录，请根据实际替换。</span>以下操作均以“/opt”为例进行说明。</p>
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<pre class="screen" id="vmware_gud_0142__zh-cn_topic_0000002200116653_screen79234411411">cd /opt/DataBackup/ProtectClient</pre>
</li><li>执行以下命令，停止客户端服务。<pre class="screen" id="vmware_gud_0142__zh-cn_topic_0000002200116653_screen39264412140">sh stop.sh</pre>
</li><li>执行以下命令启动客户端服务。<pre class="screen">sh start.sh</pre>
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</p></li><li><span>重新执行备份任务，如果仍出现此问题，请重新安装客户端。</span></li></ol>
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